Article
Materials Science, Ceramics
Muhammad Zeshan, Mahmood Ali, Meznah M. Alanazi, ShaimaaA. M. Abdelmohsen, Rabia Yasmin Khosa, Abdullah G. Al-Sehemi, Mohd Zahid Ansari, Roaa A. Tayeb, Hafiz Muhammad Tahir Farid, Mohammed M. Rahman
Summary: High-frequency nanocomposites, consisting of ferrite and a polyaniline matrix, have become the focus of electronic and telecommunication technologies. The addition of spinel ferrite to the nanocomposites through sol-gel technique and in-situ synthesis improved their crystallite size and reduced the dielectric constants and dielectric loss. The composite materials also exhibited ferromagnetic characteristics and enhanced resistivity and activation energies.
CERAMICS INTERNATIONAL
(2023)
Review
Nanoscience & Nanotechnology
Peitao Xie, Zhicheng Shi, Mei Feng, Kai Sun, Yao Liu, Kelan Yan, Chunzhao Liu, Tarek A. A. Moussa, Meina Huang, Shuwei Meng, Gemeng Liang, Hua Hou, Runhua Fan, Zhanhu Guo
Summary: Dielectric constant is a physical parameter that determines the response of materials to electromagnetic waves or electrical field. Negative dielectric property, a key for constructing metamaterials, has unique electromagnetic properties. Recent advances have demonstrated the feasibility of achieving negative dielectric property in heterogeneous composites.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Muhammad Danish, Misbah ul Islam, Farooq Ahmad, M. Nadeem Madni, M. Jahangeer
Summary: This study synthesized M-type hexaferrite and graphene oxide using sol-gel auto-combustion and modified Hummer process. The structure and morphology of the materials were characterized by XRD and SEM. The experimental results showed that coupling magnetic ferrite with graphene oxide can tune the electromagnetic properties of the materials, with potential applications in various fields.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2024)
Article
Chemistry, Physical
Xiang Xi, D. D. L. Chung
Summary: The dielectric behavior of polycrystalline graphite is influenced by factors such as grain size, resistivity, and inter-electrode distance. Smaller grain sizes lead to higher permittivity and electric field, while also increasing the speed of polarization, depolarization, and discharge/charge processes. The electric field and the reciprocal of the capacitance linearly increase with inter-electrode distance, indicating a model of dipoles in series.
Article
Engineering, Chemical
Muhammad Jamshaid, Muhammad Imran Khan, Hasan M. Khan, Abdul Rauf, Ome Parkash Kumar, Muhammad Nadeem Akhtar, Shahid Iqbal, Abdallah Shanableh, Aziz Ur Rehman
Summary: Researchers synthesized Sm and Co substituted M-type hexaferrite by sol-gel auto-combustion approach and investigated its applications for organic pollutants photocatalysis. The study showed potential for high-frequency devices and environmental remediation.
DESALINATION AND WATER TREATMENT
(2021)
Article
Computer Science, Information Systems
Jurgen K. A. Nogueira, Joao G. D. Oliveira, Samuel B. Paiva, Valdemir P. Silva Neto, Adaildo G. D'Assuncao
Summary: A sensor is proposed to characterize the complex permittivity of dielectric materials in a non-destructive and non-invasive way. The sensor is based on a rectangular patch microstrip two-port circuit with a complementary split-ring resonator (CSRR) element. The sensitivity analysis is determined by varying the permittivity of the material under test (MUT). The proposed sensor is simulated and analyzed using Ansoft HFSS software, and the results show good agreement with measurements made on two different dielectric material samples with known complex permittivity values.
Article
Engineering, Electrical & Electronic
Pawel Kopyt, Bartlomiej Salski, Jerzy Krupka
Summary: This article presents a new, more precise method for measuring the complex permittivity components of isotropic and anisotropic laminar materials, as well as an analysis of sources of measurement uncertainty with recommendations.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2022)
Article
Engineering, Chemical
Weifei Wu, Tianli Ren, Xueqing Liu, Kai Huai, Xin Cui, Huaixiao Wei, Jinjin Hu, Yuming Xia, Shuohan Huang, Kun (Kelvin) Fu, Jianming Zhang, Yuwei Chen
Summary: This research demonstrated a method of aligning polyaniline particles in the TPU matrix using an AC electric field, which enhances the dielectric permittivity and optical anisotropy of composites. The aligned composites show a significantly higher dielectric permittivity compared to random composites at the same filler loading content.
POLYMER ENGINEERING AND SCIENCE
(2022)
Article
Materials Science, Ceramics
Xiaohu Ren, Xilou Pu, Hongfeng Yin, Yun Tang, Hudie Yuan, Huiqing Fan
Summary: By coating conductive polymer PANI on the surface of hexaferrite, the electromagnetic loss can be greatly enhanced, leading to improved microwave absorption capacity. The PANI@hexaferrite composite exhibited excellent absorption performance at various thicknesses, showing potential for extensive applications as microwave absorbers.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Electrical & Electronic
Alka Singh, Kumar Mukesh Ranjan, Sunil Kumar
Summary: Polycrystalline M-type barium hexaferrite samples with different Al3+ substitution levels were prepared using the sol-gel method and studied for impedance and electrical resistivity. The results showed semiconductor behavior in all samples, with resistivity increasing with Al3+ substitution. The electrical conductivity was explained by the Mott variable-range hopping mechanism, and dielectric dipoles exhibited frozen and activated states at different temperatures. A correlation between ac impedance and DC resistivity was established in the M-type hexaferrite magnetic semiconductor.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Nyathani Maramu, D. Ravinder, T. Anil Babu, M. Srinivas, B. Ravinder Reddy, G. Sriramulu, Katlakuntla Sadhana, N. V. Krishna Prasad
Summary: A series of silver-doped strontium hexaferrite were synthesized by the Co-precipitation method, and their crystal structure, morphology, and microwave absorption properties were studied. The results showed that the lattice parameters increased and grain size decreased with the increase of Ag doping, leading to improved microwave absorption properties in X-band frequencies. The study confirmed the nature of microwave absorption for Ag-doped strontium hexaferrite.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Materials Science, Composites
Povilas Bertasius, Sebastien Schaefer, Jan Macutkevic, Juras Banys, Algirdas Selskis, Vanessa Fierro, Alain Celzard
Summary: This article investigates the dielectric properties of PDMS nanocomposites filled with SrTiO3 nanoparticles, showing that dielectric dispersion occurs at lower temperatures.
POLYMER COMPOSITES
(2021)
Article
Engineering, Electrical & Electronic
Rimpi Chakravarty, R. Padhee, R. K. Parida, B. N. Parida
Summary: In this research, the structural, microstructural, dielectric, electrical, and magnetic properties of Mg-doped BaFe0.5Nb0.5O3 complex perovskite were investigated thoroughly. The sample showed a heterogeneous distribution of non-uniform shape grains and had a monoclinic crystal structure. Elemental analysis confirmed the presence of expected elements and X-ray photoelectron spectroscopy indicated the existence of oxygen vacancies. The sample exhibited suitable dielectric, electrical, and magnetic properties for modern electronic device-based applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Samia A. Saafan, Mostafa K. El-Nimr, Marwa M. Hussein, Maha K. Omar
Summary: The study prepared Mg Zn nano-ferrites, benzoxazine monomer, polybenzoxazine polymer (PBZ), and PBZ/ferrite composites with different weight ratios through citrate-nitrate auto combustion and co-precipitation methods. The FTIR analysis showed the presence of ferrites and PBZ in the composites, while the results of conductivity and dielectric constant were consistent and mutually reinforcing, indicating potential applications in semiconductor element mounting boards.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Multidisciplinary Sciences
Konrad Wilczynski, Anna Wroblewska, Agata Daniszewska, Jerzy Krupka, Michal Mrozowski, Mariusz Zdrojek
Summary: This study analyzes the high-frequency dielectric properties of two types of composites based on polypropylene. The addition of fillers significantly increases the dielectric constant, while the loss tangent depends on the filler loading volume. A theoretical model is proposed to explain the experimental results and investigate the impact of various factors on the loss tangent and permittivity evolution.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Ceramics
Muhammad Arshad, Muhammad Azhar Khan, Ghulam Abbas Ashraf, Khalid Mahmood, Muhammad Imran Arshad
Summary: A series of (Zr-Co) substituted Y-type polycrystalline hexaferrite were fabricated by sol-gel auto combustion method, and their structural and electrical properties were investigated. The addition of Zr4+-Co2+ metal cations resulted in an increase in lattice parameters and a decrease in grain size. The formation of pure single-phase Y-type hexaferrites was confirmed by X-ray powder diffraction and FTIR spectra. The electrical resistivity, dielectric properties, and complex impedance spectroscopy indicated that the substitution of Zr4+-Co2+ ions significantly influenced the conduction and dielectric behavior of the nano ferrite materials.
CERAMICS INTERNATIONAL
(2023)
Article
Environmental Sciences
M. K. Anser, M. Ahmad, M. A. Khan, A. A. Nassani, S. E. Askar, K. Zaman, M. M. Q. Abro, A. Kabbani
Summary: This study examines the role of technology transfer in preventing communicable diseases, and finds that technological innovation, including innovative capability, absorptive capacity, and healthcare competency, can help reduce the occurrence of infectious diseases. Factors such as patent applications, scientific and technical journal articles, trade openness, hospital beds, and physicians also contribute to the reduction of infectious diseases.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Muhammad Azhar Khan, Sohail Afzal, Shagufta Gulbadan, Khalid Mahmood, Ghulam Abbas Ashraf, Majid Niaz Akhtar
Summary: Nano-crystalline Gd-substituted X-type hexaferrites with different Gd concentrations were synthesized and their properties were studied. X-ray diffraction confirmed the single and pure phases of hexagonal ferrites. The dielectric properties showed frequency dependence and suggested potential applications in high-frequency devices and supercapacitors. Raman spectra and SEM images further supported the findings.
CERAMICS INTERNATIONAL
(2023)
Article
Physics, Condensed Matter
Memoona Mehmood, Muhammad Nasir Rasul, Altaf Hussain, Muhammad Amir Rafiq, Faisal Iqbal, Alina Manzoor, Muhammad Azhar Khan
Summary: In this study, the physical properties of novel antiperovskite materials XCRh3 (X = Cd, Ta, W, Re, Os, Ir, Pt, Au, Hg, Ce, Pr, Nd, Pm, Sm, Eu, Tb) were investigated using density functional theory. The study focused on structural, electronic, elastic, magnetic, and thermodynamic properties, and included the computation of mechanical parameters and analysis of thermodynamic properties under various pressures and temperatures.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Public, Environmental & Occupational Health
Aqeel Khan, Shiraz Khan, Muhammad Azhar Khan, Khalid Zaman, Haroon ur Rashid Khan, Arieff Salleh Bin Rosman, Yasinta Indrianti, Abidin Ali Hassan
FRONTIERS IN PUBLIC HEALTH
(2023)
Review
Engineering, Biomedical
Muzamil Hussain, Sami Ullah, Muhammad Rafi Raza, Naseem Abbas, Ahsan Ali
Summary: This review summarizes the current research status on Zn-based biodegradable materials, discusses the biological function of Zn in bone metabolism and new cell growth, and introduces methods to improve material performance by alloying elements and post-processing techniques.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Syeda Rabia Ejaz, Muhammad Azhar Khan, Shagufta Gulbadan, Muhammad Shahzad Shifa, Ghulam Murtaza
Summary: Nanocrystalline X-type hexaferrites with the composition Sr2-xCaxNi2-yBayFe28O46 (x = y = 0-0.5) were synthesized via sol-gel auto-combustion method. The inclusion of Ca-Ba significantly altered the porosity, X-ray density, and ac conductivity of the synthesized materials. The dielectric constant values of all compositions were higher than Sr2Ni2Fe28O46, making these materials suitable for high dielectric constant applications. VSM analysis showed decreased magnetic properties with increasing Ca-Ba concentration, suggesting potential use in memory devices, microwave absorption, and magnetic radar-absorbing materials for high-frequency applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Materials Science, Ceramics
Qurat Ul Ain Shahid, Muhammad Azhar Khan, Shagufta Gulbadan, Ghulam Abbas Ashraf, Raqiqa Tur Rasool
Summary: A series of erbium-substituted Z-type hexaferrites were synthesized and sintered using the sol-gel auto combustion method. The substitution of erbium ions into the hexagonal lattice improved the structural parameters. Changes in dielectric parameters were observed with erbium substitution. The materials showed potential for applications in microwave absorbers, resonant circuits, and high-frequency devices due to their high-quality factor and small crystallite size.
CERAMICS INTERNATIONAL
(2023)
Article
Biology
Muhammad Asam Raza, Umme Farwa, Fatima Ishaque, Abdullah G. Al-Sehemi
Summary: Computational designing of four different series of thiazolidinone was conducted by condensing various amines with different aldehydes. In silico molecular investigations using density functional theory (DFT), molecular docking, and ADMET studies were performed. Quantum mechanical modeling approach with Gaussian predicted the electrochemical parameters of the compounds. Docking software was used to dock the compounds against PDB files of chickenpox, human immunodeficiency, hepatitis, and monkeypox virus. Molecular interactions were visualized with discovery studio, and D8 compounds showed the highest binding affinity against 4QWO (-13.383 kcal/mol). Compound D5 had the highest binding affinity against 1VZV (-12.713 kcal/mol). The drug-likeness of the designed compounds was assessed using Swiss ADME web tool, and it was concluded that these molecules had a drug-like structure with minimal violations.
COMPUTATIONAL BIOLOGY AND CHEMISTRY
(2023)
Article
Environmental Sciences
M. Abdullah, G. Murtaza, Muhammad Azhar Khan
Summary: CuFe2O4 nanoparticles were synthesized via the sol-gel auto combustion method and hybridized with layer-structured graphene. The nanoparticles exhibited a crystallite size up to 53 nm, with variations depending on the copper ferrite content. Fourier transform infrared spectroscopy confirmed the presence of carboxyl stretching, aromatic stretching, and Fe-O bonds. Scanning electron microscopy images revealed the surface morphology of the nanoparticles and nanocomposites, while vibrating sample magnetometer results showed their magnetic properties. Energy dispersive X-ray spectroscopy and Brunauer-Emmett-Teller surface area analysis confirmed the composition and surface characteristics of the materials. The composite demonstrated excellent adsorption capacities for As(III) and As(V) due to the synergistic effect of CuFe2O4 and graphene.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Agronomy
Muhammad Shahid, Muhammad Farrukh Saleem, Amna Saleem, Muhammad Sarwar, Muhammad Aown Sammar Raza, Shakeel Ahmad Anjum, Arshad Hussain
Summary: High temperature stress during reproductive stages of wheat is a major constraint for achieving food security. This study aimed to investigate heat sensitivity of terminal stages of wheat, optimize foliar selenium dose, boost nonenzymatic antioxidants, and determine their correlation with yield and quality attributes of wheat crop. The field experiment was conducted for two consecutive years, and the results showed that H-1 had a more damaging impact compared to H-2 and H-0. Foliar spray of 75 mg L-1 selenium proved to be more beneficial under H-0, while 100 mg L-1 selenium was more beneficial under H-1 and H-2. Strong associations between biochemical and agronomic traits were observed.
CEREAL RESEARCH COMMUNICATIONS
(2023)
Article
Engineering, Electrical & Electronic
Wasim Tahir, Muhammad Azhar Khan, Raqiqa Tur Rasool, Shagufta Gulbadan, Abdul Majeed, Gulfam Nasar
Summary: This study investigates Cu-substituted W-type hexagonal ferrites with a novel composition Sr0.5Ba0.5Co1.2CuxZn0.8-xFe16O27 and analyzes their structural, spectral, dielectric, and magnetic properties. The results demonstrate the potential applications of these materials in optoelectronic devices and self-biased microwave devices.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Kanwal Majeed, Muhammad Azhar Khan, Raqiqa Tur Rasool, Shagufta Gulbadan, Abeer A. AlObaid, M. Irfan, Ghulam Abbas Ashraf, Ghazanfar Nazir, Majid Niaz Akhtar
Summary: Recently, nano-sized Z-type hexagonal ferrites with Indium substitution have been synthesized and shown to have excellent properties for microwave absorption and resolving EM pollution. These materials also have significant applications in EM interference shielding and radar cross-section reduction, making them suitable for stealth technology.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Physics, Condensed Matter
Muhammad Asif, Muhammad Junaid, Muhammad Azhar Khan, Raqiqa Tur Rasool, Muhammad Javed Akhter
Summary: The effect of Nd3+ ion substitution on the structural, morphological, ferroelectric, and dielectric properties of Y1xNdxFeO3 was investigated. The substitution changed the shape of particles and caused the splitting of vibrational characteristic bands. The substituted YFO exhibited increased dielectric constant and low dielectric losses, suggesting their potential use in multilayer chip inductors.
PHYSICA B-CONDENSED MATTER
(2023)
Review
Biochemistry & Molecular Biology
Faisal Haroon, Umme Farwa, Maimoona Arif, Muhammad Asam Raza, Zeshan Ali Sandhu, Mohamed El Oirdi, Mohd Farhan, Mohammed Ahmed Ismail Alhasawi
Summary: PABA, as a versatile building block, has the potential to develop novel molecules with various medical applications. PABA compounds have been found to possess anticancer, anti-Alzheimer's, antibacterial, antiviral, antioxidant, and anti-inflammatory properties, making them potential therapeutic agents in the future. This study primarily focuses on PABA-based therapeutic chemicals as molecular targets and their usage in biological processes.
Article
Materials Science, Multidisciplinary
Bibhutibhusan Nayak, S. Narayana Jammalamadaka
Summary: This article presents a method for remote detection of bovine serum albumin (BSA) using modified cantilever beam magnetometry (CBM). By combining a magnetostrictive Fe70Ga30 cantilever with optical detection technique, researchers were able to detect high concentrations of BSA remotely. The results of this study demonstrate the potential of this method in estimating the magnetostriction of thin films.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yu Hao, R. E. Camley, Z. Celinski
Summary: Magnetic particles have various applications and their magnetic state is determined by their size and the strength of an applied magnetic field. Numerical simulations were performed to study the effect of an applied field on the critical size of single-domain magnetic particles, and the critical field at which a particle becomes single-domain was determined.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Nitesh Singh, Naresh Kumar, Dharohar Sahadot, Anil Annadi, Vidyadhar Singh, Murtaza Bohra
Summary: The unique magnetic properties of FM/AFM and hard-FM/soft-FM nanocomposite thin films have significant relevance for numerous applications. The composition and performance of different magnetic phases in the nanocomposite films can be significantly affected by the laser ablation conditions and annealing temperature.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Alya Ali Musaed, Samir Salem Al-Bawri, Khaled Aljaloud, Wazie M. Abdulkawi, Mohammad Tariqul Islam, Mandeep Jit Singh, Zaini Sakawi, Husam Hamid Ibrahim
Summary: This research presents a wideband tunable metamaterial for body-centric applications in the millimeter-wave frequency band. The proposed metamaterial has a wide operating frequency range and enhanced gain, making it suitable for improving the antenna performance in 5G wireless communication systems.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Binod K. Rai, Boris Maiorov, Krzysztof Gofryk, Patrick O'Rourke, Catherine Housley, Henry Ajo, Asraf Sawon, Arjun K. Pathak, Narayan Poudel, Qiang Zhang, Travis J. Williams, Matthias Frontzek
Summary: This manuscript reports on the structural and magnetic properties of NdCuGa3. The study confirmed the crystal structure and magnetic phase transition of NdCuGa3 using XRD, neutron diffraction, magnetization, and specific heat measurements. The neutron diffraction data further confirmed the antiferromagnetic phase of NdCuGa3.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Haonan Li, Cong Li, Hailiang Huang, Guodong Hao, Fei Wang
Summary: The electronic structure and ferroelectric-ferromagnetic coupling properties of Y-doped and vacancy-containing GaN-ZnO heterojunctions are systematically investigated. The magnetism in vacancy-containing systems is generated by the spin polarization of unpaired electrons induced by cationic vacancies, while in Y-doped systems, bound magnetic polarons are formed by the orbital hybridization of s-state and d-state electrons of Y-doped elements.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Muhammad Ijaz, Hafeez Ullah, Bandar Ali Al-Asbahi, Mati Ullah Khan, Zaheer Abbas, Sana Ullah Asif
Summary: M-type BaFe11.4-xAlxCo0.6O19 hexaferrites with Al3+ substitutions were synthesized using the co-precipitation method followed by Sonochemical process. The synthesized materials were characterized using XRD, FTIR, UV-vis spectroscopy, VSM, SEM, and LCR meter. The results showed that aluminum doping decreased the band gap and enhanced the magnetic and dielectric properties of the hexaferrites, making them suitable for various applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Oleg I. Utesov
Summary: The elementary excitations spectrum of anisotropic frustrated antiferromagnets in the fan phase is discussed. It is found that the low-energy part of the spectrum consists of a gapless phason branch with linear dispersion and a gapped optical branch corresponding to the fan structure amplitude oscillations. In the high-energy part of the spectrum, the excitations are similar to the magnons of the fully polarized phase.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Alexander Ya. Simonovskii, Alexander A. Yanovskii, Arthur R. Zakinyan
Summary: In this study, the departure frequency of vapor bubbles during boiling of ferrofluid in a horizontal magnetic field is experimentally investigated. Two methods, visual and inductive, are used to measure the frequency of bubble departure. The results show that the bubble departure frequency can decrease with increasing magnetic field strength and increase with increasing temperature of the heat-emitting surface. A linear stability analysis is conducted to analyze the influence of the magnetic field on the frequency of bubble formation during ferrofluid boiling.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Oleg Heczko, Michal Rames, Vit Kopecky, Petr Vertat, Michal Varga, Ladislav Straka
Summary: Heusler Ni-Mn-Ga alloys are multiferroic materials that exhibit magnetic shape memory (MSM) phenomena. By doping transition elements into Ni2MnGa alloys, the transformation temperatures can be modified and complex behaviors can be observed, such as the variation in saturation magnetization and the effects of elemental substitution on compound properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Carlos Ariel Samudio Perez, Ariel Flaig de Marchi
Summary: This study investigates the electronic and magnetic properties of the Full-Heusler Fe2MnAs alloy using first-principles calculations. The alloy may form spontaneously and exhibits a ferromagnetic order and high spin-polarization. It can be transformed into a half-metal by contracting the lattice constant. Additionally, certain defects contribute to the spin-polarization of the alloy, making it a fully half-metallic material.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Satish Geeri, Aditya Kolakoti, Prasadarao Bobbili
Summary: In this study, an electromagnetic wave-absorbing material was fabricated using a polymer composite material with fiber orientation and Multiwall Carbon Nanotubes as filler materials, along with a Perfect Electric Conducting material. The experiments demonstrated strong electromagnetic absorbing properties for the composites with PEC-coated and non-PEC-coated materials. Mechanical, thermal, and morphological analysis confirmed the similar trend in properties. CRITIC analysis helped identify the sequence order of sustaining properties for the fabricated composites.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Yankai Chen, Ruoxue Zhang, Yukai An
Summary: The piezoelectricity, valley character, and magnetic properties of 2H-VS2 monolayer were studied, revealing its potential applications in spintronics and valleytronics due to its bipolar magnetic semiconductor characteristics and superior physical properties.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Leonardo S. Lima
Summary: This study investigates the thermodynamic quantities, such as entropy, specific heat, and magnetic susceptibility, in the next-nearest-neighbors Heisenberg model on a honeycomb-kagome lattice. The linear spin-wave approach is applied to obtain the temperature-dependent behavior of these quantities. Additionally, the entanglement negativity, a quantifier of quantum entanglement, and the spin Hall conductivity are also studied. The results show that all the thermodynamic quantities, as well as the entanglement negativity and spin Hall conductivity, exhibit an increasing trend with temperature. Furthermore, it is found that all the analyzed quantities approach zero in the low-temperature limit, consistent with experimental observations.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Zhaoxing Wang, Maximilian Kai Reimann, Wang Chen, Yikun Zhang, Rainer Poettgen
Summary: The Mo2FeB2-type compounds RE2Ga2Mg (RE = Tm, Er, Ho) exhibit a large magnetocaloric effect, making them promising for cryogenic magnetic cooling applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2024)
